Hardened Gear reducer mainly used cranes can also be applied in transportation, metallurgy, oil mining, the chemical industry, light industry, such as construction and
On the machinery and equipment in the armed drive configuration.

Arbide-Faced Cylindrical Gear Decelerators includes parallel shaft and vertical shaft. Parallel shaft decelerator is manufactured according to national standard (JB/T8853-2001). The products are optimized to advanced standard in 1980s. It includes 4 series of ZDY(single stage ), ZLY(2-stage), ZSY(3-stage) and ZFY(4-stage). Vertical shaft decelerator is manufactured according to national standard (JB/T9002-1999) and used as driving deceive that has vertical arrangement of input or output shaft, and it includes 3 series of DBT, DCY and DFY.